Question

The diameter of this beach ball is 12 inches.

Answer 1

volume of a sphere

$V = \frac{4}{3}\pi r^3$


Just plugin the numbers you have. For instance, r = radius. We know that the radius is 1/2 of the diameter. Our diameter is 12 so 12 / 2 = 6. With that said, add 6 to where the r is located in the formula and solve the formula.

Solve for V
$V = \frac{4}{3}\pi 6^3$

To solve for V we have to do the following.

$V = \frac{4}{3}\times \pi \times 6^3$

The formula above reads V(Volume of air) equals 4 divided by 3 times pi times 6 to the power of 3

Answer 2

Answer is 904.78 Just took the test!!

:)